Replace URL in a string

Question

I'm a beginner in C# and I have the following string,

string url = "svn1/dev";

along with,

string urlMod = "ato-svn3-sslv3.of.lan/svn/dev"

I want to replace svn1 in url with "ato-svn3-sslv3.of.lan"

Is it always `svn1` you want to replace? Or all characters before the first `/`? — germi, Apr 17 '14 at 13:50
What have you tried until now? Replacing strings is something google will help you a lot. Did you run into any problems? — kat0r, Apr 17 '14 at 13:50
@germi yea its always svn1. Kindly note that I'm having http in first url, and https in the urlMod that is appended to both — Andre, Apr 17 '14 at 13:51
It smells like a string is immutable understanding. THere are plenty of Replace methods on string but you have to assign the result to a variable to get the change string. — kenny, Apr 17 '14 at 13:52
I agree with kat0r, I suggest, being new to C# you learn now how to google the answer to problems like this. It will help you much more than just giving you the answer — dferraro, Apr 17 '14 at 13:52
@Kenny, there are a lot of answers that show a lot of people who has high rank, don't understand also that string is immutable — Andre, Apr 17 '14 at 13:55
"don't understand also that string is immutable" @Andre take a look at the link in my answer — jltrem, Apr 17 '14 at 13:58

score 3 · Answer 1 · answered Apr 17 '14 at 13:51

3

Although your question still has some inconsistent statements, I believe String.Replace is what you are looking for:

http://msdn.microsoft.com/en-us/library/fk49wtc1.aspx

url = url.Replace("svn1","ato-svn3-sslv3.of.lan");

answered Apr 17 '14 at 13:51

Andrew

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score 1 · Answer 2 · answered Apr 17 '14 at 13:51

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You can use the string method replace.

url = url.Replace("svn1", urlMod)

answered Apr 17 '14 at 13:51

Honorable Chow

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You'll have to assign that to a variable - `Replace` returns a new `string`, it doesn't alter the one you call it from. – germi Apr 17 '14 at 13:52

score 1 · Accepted Answer · edited May 23 '17 at 10:32

1

Strings are immutable so you need to assign the return value to a variable:

string replacement = "ato-svn3-sslv3.of.lan";
url = url.Replace("svn1", replacement);

edited May 23 '17 at 10:32

Community

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answered Apr 17 '14 at 13:51

jltrem

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you'll end up with `"ato-svn3-sslv3.of.lan/svn/dev/dev"` – Andrew Apr 17 '14 at 14:06
good point @Andrew. I updated it to use the value he asked to use as a replacement. – jltrem Apr 17 '14 at 14:15

score 0 · Answer 4 · answered Apr 17 '14 at 13:54

I think you need this:

        string url = "svn1/dev";
        string anotherUrl = "ato-svn3-sslv3.of.lan/svn/dev";
        string toBeReplaced = anotherUrl.Split('/')[0];
        url = url.Replace("svn1", toBeReplaced);

It uses split method and replace method.

Replace URL in a string

4 Answers4